/r/700YearsAgo
For all your Septcentennial needs.
/r/100yearsago /r/200YearsAgo /r/300YearsAgo /r/400YearsAgo /r/500YearsAgo /r/600YearsAgo /r/800YearsAgo /r/900YearsAgo /r/OneThousandYearsAgo